Head-to-Head Comparison

Updated

Hamilton Khaki Aviation Pilot Auto vs Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

Hamilton's pilot watch meets Omega's chronograph

Quick Verdict

The Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500) offers Hamilton/ETA Automatic precision in the tier below the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) ($10,000–$25,000). The Khaki Aviation Pilot Auto measures 38mm and is rated 100m (10 ATM). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) counters with Swiss Made craftsmanship and 1200m (120 bar) water resistance. Both are exceptional watches for their respective tiers.

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Hamilton Khaki Aviation Pilot Auto

Hamilton

Khaki Aviation Pilot Auto

$1,000–$1,500

Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

Omega

Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

$10,000–$25,000

Specifications Compared

FeatureHamilton Khaki Aviation Pilot AutoOmega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)
Price$1,000–$1,500$10,000–$25,000
Case Size38mm55 x 48mm, 18.26mm thick, 48mm lug to lug
MovementAutomatic H-10 (ETA 2824-2 base)Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function
Caliber TypeHamilton/ETA AutomaticOmega 8912, Master Chronometer
Power Reserve80 HoursAbout 60 hours
Water Resistance100m (10 ATM)1200m (120 bar)
CrystalSapphire CrystalFlat sapphire, anti-reflective both sides
Case MaterialStainless SteelGrade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crown
OriginSwiss MadeSwiss Made

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Hamilton's design language vs Omega's approach

The Hamilton Khaki Aviation Pilot Auto features a Stainless Steel case at 38mm with Sapphire Crystal protection. The Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) offers Grade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crown construction at 55 x 48mm, 18.26mm thick, 48mm lug to lug with Flat sapphire, anti-reflective both sides. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Hamilton

Automatic H-10 (ETA 2824-2 base) vs Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function

The Khaki Aviation Pilot Auto runs the Automatic H-10 (ETA 2824-2 base) (Hamilton/ETA Automatic, 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) uses the Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function (Omega 8912, Master Chronometer, About 60 hours reserve) at standard. The Khaki Aviation Pilot Auto edges ahead on power reserve.

📏

Wearability & Fit

Edge: Hamilton

38mm vs 55 x 48mm, 18.26mm thick, 48mm lug to lug — different wrist presence

At 38mm, the Khaki Aviation Pilot Auto wears more compactly on smaller wrists compared to the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at 55 x 48mm, 18.26mm thick, 48mm lug to lug. Water resistance differs: 100m (10 ATM) vs 1200m (120 bar).

💰

Value & Cost of Ownership

Edge: Hamilton

Hamilton sits in the lower tier

The Hamilton Khaki Aviation Pilot Auto sits at $1,000–$1,500 and the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at $10,000–$25,000. On the specs that outlast any price: the Khaki Aviation Pilot Auto uses Sapphire Crystal with 80 Hours, against Flat sapphire, anti-reflective both sides and About 60 hours on the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial). Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Omega

100m (10 ATM) vs 1200m (120 bar)

The Khaki Aviation Pilot Auto is rated to 100m (10 ATM) while the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) handles 1200m (120 bar). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) offers superior water resistance.

Our Verdict

Hamilton

Khaki Aviation Pilot Auto

Choose the Hamilton Khaki Aviation Pilot Auto if you prioritize Hamilton/ETA Automatic engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $1,000–$1,500, it delivers Automatic H-10 (ETA 2824-2 base) with 80 Hours power reserve.

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Omega

Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

Choose the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) if you value Omega 8912, Master Chronometer technology, Swiss Made heritage, and 55 x 48mm, 18.26mm thick, 48mm lug to lug proportions. At $10,000–$25,000, the Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function with About 60 hours power reserve makes it a compelling choice.

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The Bottom Line

The Hamilton Khaki Aviation Pilot Auto and Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Omega delivers Swiss Made engineering.

Frequently Asked Questions

For water, the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) is rated 1200 m against 100 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Hamilton Khaki Aviation Pilot Auto sits a band lower ($1,000–$1,500 against $10,000–$25,000), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.
The Hamilton Khaki Aviation Pilot Auto offers better upfront value, sitting a tier lower at $1,000–$1,500. However, the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Khaki Aviation Pilot Auto at 38mm with 100m (10 ATM) water resistance handles everyday situations. The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at 55 x 48mm, 18.26mm thick, 48mm lug to lug with 1200m (120 bar) is similarly capable. The Khaki Aviation Pilot Auto uses Sapphire Crystal while the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) uses Flat sapphire, anti-reflective both sides.

How This Page Was Made

Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.